About a day: The half life of Rohypnol is 18-30 hours. That means that after about 24 hours, half as much is left in your system. How it affects you depends on the dose and frequency given. Yes, it can be detected in b fluids.
Answered 8/24/2018
5.8k views
Urine test: A urine test could potentially detect Rohypnol for up to sixty hours after it was ingested. But it is hard to detect because concentrations may be quite low.
Answered 2/5/2019
5.2k views
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